Is it possible to unplug an active Atmel ICE (connected to an AVR via ISP6) at the wrong time and render the avr chip in an unusable state?
Some background; I plugged my Atmel ICE into my custom PCB's ISP6 header and opened the device programming menu in Atmel Studio 7. The ICE read my board's voltage and signature correctly. I then unplugged my Atmel ICE and set my board aside for a few days. Since then, i've tried connecting my custom PCB to my computer (via USB) but the microcontroller is no longer recognized by windows device manager. After toggling the RESET button on my PCB, which wipes the programmable memory and resets the chip to its stock settings, the PCB is still undetectable by both Windows Device Manager and Atmel FLIP.
Is it possible that unplugging the ICE at a bad time can cause this issue? My theory is that maybe a BOOT fuse was flipped by the ICE, as is normal, but was locked in an unreadable state due to the timing of the ICE being unplugged from my PCB.
As soon as I get my PCB back from one of my colleagues I'll plug the Atmel ICE in again and try to bring the chip back to life in Atmel Studio. Hopefully that fixes the issue.